Hackintosh noob need help...

Hello,
I want to buy either

Acer 15.6" Laptop with 2nd Gen i5 2450m core from Future Shop Canada
or
Acer Aspire 15.6" Laptop with Intel core i7 2570qm processor from Best Buy Canada
or
Inspiron 15R with 6GB RAM and 1TB HDD from Dell.ca

Are any of these compatible with OSX? What features will and won't work? What are some tips. I wanted to install the OSX through a CD on the PC and use the Lion Thumb Drive to get Lion. I also wanted to partition my drive for a section for OSX without losing any data. Is this okay? Where can I get instructions? My main question is about the compatibility and installing using Snow Leopard, Lion Thumb Drive, tonymac, iBoot and UniBeast using only my PC. I'm also doing research on the legality of this as I don't really want to do anything illegal.

Thanks,
Sly14Cat